[VK2TPM] Resistive tap built with sharpie PCB etch

[VK2TPM via rec.radio.amateur.moderated Admin]

marxy's musing on technology

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Resistive tap built with sharpie PCB etch

Posted: 21 Sep 2021 05:12 PM PDT
http://blog.marxy.org/2021/09/resistive-tap-built-with-sharpie-pcb.html

I'm keen not to burn out the input to the spectrum analyser. It's 50 ohms
in with a maximum of +30dBm. The solution is to transmit into a dummy load
and sample the signal with a resistive tap.A good candidate for a simple
PCB and I used Paul Taylor, VK3HN's, technique of drawing resist on the
board with a sharpie. Components are all soldered on to the top of the
board so laying them out to figure